Rehabilitation of Existing Facilities
An environmental assessment of the proposed rehabilitation
should be carried out early in the process of preparing the
project in order to allow an opportunity to evaluate alternative
rehabilitation options before key design decisions are finalized.
The assessment should include an environmental audit that
examines the impacts of the existing plant’s operations on
nearby populations and ecosystems, supplemented by an EA
that examines the changes in these impacts that would result
under alternative specifications for the rehabilitation, and the
estimated capital and operating costs associated with each
option. Depending on the scale and nature of the rehabilitation,
the audit/environmental assessment may be relatively narrow